NTA Questions and Answers Graded A+
Question: What is the primary function of a network switch in a computer network?
Answer: A network switch directs data packets between devices on the same network by
using MAC addresses to determine the destination, ensuring efficient data transfer within ...
NTA Questions and Answers Graded A+
Question: What is the primary function of a network switch in a computer network?
Answer: ✔✔ A network switch directs data packets between devices on the same network by
using MAC addresses to determine the destination, ensuring efficient data transfer within the
local area network (LAN).
Question: How does a router differ from a switch in network architecture?
Answer: ✔✔ A router connects different networks and routes data between them, often including
network address translation (NAT) and firewall capabilities. In contrast, a switch operates within
a single network, directing traffic based on MAC addresses.
Question: What is the purpose of subnetting in IP networking?
Answer: ✔✔ Subnetting divides a larger network into smaller, manageable subnetworks,
improving network performance, enhancing security, and making efficient use of IP address
space.
Question: Explain the concept of VLAN (Virtual Local Area Network).
1
, Answer: ✔✔ VLANs segment a physical network into multiple logical networks, allowing for
isolated broadcast domains within the same physical network infrastructure, which enhances
security and reduces congestion.
Question: What is a DHCP server and how does it function in a network?
Answer: ✔✔ A DHCP (Dynamic Host Configuration Protocol) server automatically assigns IP
addresses and other network configuration parameters to devices on the network, simplifying
device management and reducing manual configuration errors.
Question: Describe the role of a firewall in network security.
Answer: ✔✔ A firewall monitors and controls incoming and outgoing network traffic based on
predetermined security rules, protecting the network from unauthorized access and potential
threats.
Question: What is the purpose of network address translation (NAT)?
Answer: ✔✔ NAT translates private IP addresses within a local network to a single public IP
address for external communication, allowing multiple devices to share one public IP address
and providing an additional layer of security.
Question: How does the OSI model facilitate network communication?
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